MyQuestionIcon

3

You visited us 3 times! Enjoying our articles? Unlock Full Access!

Cells

Fill in the b...

Question

Fill in the blank spaces by choosing the correct word.

The focal length of the objective lens of compound microscope is always ..........(less\more) than the focal length of eye lens.

Open in App

Solution

Less
The objective lens has a very small focal length. The object is placed just over F of the objective lens forming a magnified image. This image is the object for the eye lens and lies between focus and optical center of the eye less as it has a greater focal length as compared to the objective lens. Since the new object is between focus and and optical center, it forms a virtual, magnified image which falls on the eye.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A compound microscope consists of an objective lens with focal length 1.0 cm and eye piece of focal length 2.0cm and a tube length 20cm the magnification is

Q. In a compound microscope the focal length of objective lens.

Q. The length of the compound microscope is

14 c m

. The magnifying power for relaxed eye is

25

. If the focal length of eye lens is

5 c m

, then the object distance for objective lens will be

Q. In a compound microscope the focal length of objective lens is

1.2 c m

and focal length of eye piece is

3.0 c m

. When object is kept at

1.25 c m

in from of objective, final image is formed at infinity. Magnifying power of the compound microscope should be :

Q. In a compound microscope the focal length of an objective lens is

1.2 cm

and the focal length of the eye piece is

3 cm

. When the object is kept at

1.25 cm

in front of the objective lens, the final image is formed at infinity. Magnifying power of the compound microscope should be:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Cells

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard IX Biology

Join BYJU'S Learning Program

CrossIcon